Rio Mainstream Trout Fly Line

Marsoni

M251S

$49.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Rio Mainstream Trout Fly LineRIO's Mainstream series of fly lines have been developed to meet the overall needs of the average and novice fly fisher, and are designed to optimize rod performance with slightly heavier and shorter head lengths. Every Mainstream line undergoes the same rigorous production processes and quality control standards as all RIO fly lines, and is made in RIO's Idaho manufacturing facility. Each line is built with a slick coating on a supple memory free

Easy Shipping

Quick Dispatch:

Your Rio Mainstream Trout Fly Line orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Rio Mainstream Trout Fly Line ships.

Need Help?
Questions about Rio Mainstream Trout Fly Line, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Rio Mainstream Trout Fly Line in your area.

Get Shipping Estimates

Country Zip/Postal Code

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

I’m 5’6” and ordered the small — it fits perfectly! The color is exactly as shown in the pictures, a beautiful beige that goes with everything. The fabric is incredibly soft and comfortable, making it great for layering or wearing on its own. I’m really happy with this purchase and would definitely recommend it!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on November 1, 2025

Verified Purchase

CC7

New York, US

★★★★★ 3

Nice but not great

Fits true to size. I ordered a small and it was a great fit. Could be a bit softer. Loved the style. Not too thin or not heavy, nice weight. This quality of the sweater was nice, however the buttons broke apart as I was styling the cardigan. Not happy to have to sew on small buttons to fit the small holes. It’s nice but I had to put too much effort into wearing it.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on February 11, 2026

Verified Purchase

KINDLE

Birmingham, US

★★★★★ 4

Great product

Color: Black, Size: Medium

Love it. Fit is great. The only issue is pilling

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 22, 2026